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  #21  
Old 17-07-2021, 09:02 PM
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Originally Posted by peter_4059 View Post
Greg, this is what the Voyager local field focus interface looks like when it is in action. It measures HFD for stars in the field you are currently imaging and fits a spline curve to find the best focus.
Thanks Peter.

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  #22  
Old 18-07-2021, 11:28 AM
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Cool to see how Voyager works.

The NINA crew have an upload service on their Discord server where you can give it your focus log data and get feedback on the various curve fit options while tweaking step sizes etc. From memory the main options are quadratic, hyperbolic, trend lines, or both with/without trend lines.

As commented above, we really are spoiled for choice in the imaging suites nowadays.
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  #23  
Old 24-07-2021, 05:11 PM
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Greg, @F3 in TheSkyX works really well and you don't need to slew away. Also, if you can characterize your filter offsets you can always focus with the same filter. This works quite well for NB.

Peter
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  #24  
Old 30-08-2021, 09:51 PM
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Asiair Pro and ZWO EAF works well for me.
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  #25  
Old 02-09-2021, 02:27 PM
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Originally Posted by PRejto View Post
Greg, @F3 in TheSkyX works really well and you don't need to slew away. Also, if you can characterize your filter offsets you can always focus with the same filter. This works quite well for NB.

Peter
I have heard it works well. I have Sky X but not the yearly subscription model so its @focus 2. That works OK but I don't know that it is reliably accurate especially in variable seeing.

Planewave have a same location focus routine. I wonder if that would work with a non Planewave focuser.


Greg.
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  #26  
Old 02-09-2021, 02:27 PM
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Quote:
Originally Posted by PRejto View Post
Greg, @F3 in TheSkyX works really well and you don't need to slew away. Also, if you can characterize your filter offsets you can always focus with the same filter. This works quite well for NB.

Peter
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Asiair Pro and ZWO EAF works well for me.
Those 2 accessories do seem to be very popular and very full featured.

Greg.
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  #27  
Old 09-09-2021, 05:56 PM
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The answer to every astronomy software question is: NINA

*okay not every question
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  #28  
Old 09-09-2021, 05:56 PM
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Originally Posted by RobF View Post
Cool to see how Voyager works.

The NINA crew have an upload service on their Discord server where you can give it your focus log data and get feedback on the various curve fit options while tweaking step sizes etc. From memory the main options are quadratic, hyperbolic, trend lines, or both with/without trend lines.

As commented above, we really are spoiled for choice in the imaging suites nowadays.
that's your graph? If so, that's a beaut. Very very good!!
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  #29  
Old 09-09-2021, 08:55 PM
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Originally Posted by AdamJL View Post
that's your graph? If so, that's a beaut. Very very good!!
Nope, just grabbed an example off the Discord server - Robofocus on my scope usually a bit more lumpy but still very reliable.
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